The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2016
Filed:
Nov. 23, 2012
Intrinsic ID B.v., Eindhoven, NL;
Vincent Van Der Leest, 's-Hertogenbosch, NL;
Bart Karel Benedikt Preneel, Leuven, BE;
Erik Van Der Sluis, Utrecht, NL;
INTRISIC ID B.V., Eindhoven, NL;
Abstract
A cryptographic system for reproducibly establishing a reliable data string, such as a cryptographic key, from a noisy physically unclonable function (PUF,) is provided. The system comprises a hard decision decoder () to decode a first multiple of error correctable data words to obtain a second multiple of corrected and decoded data words and a reliability information extractor () to determine reliability information, e.g. soft decision information, that is indicative of a reliability of corrected and decoded data words. The system further comprises a soft decision decoder () configured to use the reliability information to decode at least one further correctable data word. Error correcting a PUF using reliability information decreases the false rejection rate.